Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2007-01-09
2007-01-09
Wu, David W. (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C526S217000, C526S219600, C526S234000, C526S264000, C526S288000, C526S291000, C526S303100, C526S304000, C526S307300, C526S317100, C526S328500, C526S347100
Reexamination Certificate
active
11284502
ABSTRACT:
The present invention provides novel multi-functional methacrylic copolymers that exhibit cationic pH-sensitive behavior as well as good water solubility under acidic conditions. The copolymers are constructed from tertiary amine methacrylates and poly(ethylene glycol) containing methacrylates. The copolymers are useful as gene vectors, pharmaceutical carriers, and in protein separation applications.
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Anderson Brian C.
Bloom Paul D.
Mallapragada Surya K.
Sheares Ashby Valerie V.
Bernshteyn M.
Iowa State University Research Foundation
Quarles & Brady LLP
Wu David W.
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